Gandhak is chemically Sulphur and the second most important element in Rasa Shastra than Parada. It is characterized by the strong smell and gets this name. Gandhak has been included in Uparasa and said that it has ability of bhasmikaran for all Loha. R1 The best acceptable types of Gandhak is greenish-yellow or also called Amalasara Gandhak. Purified Sulphur has fungicidal and anti-parasitic effect and mainly used in various skin disease like dermatitis, psoriasis, eczema and more. It is also used in arthritis and chronic cough. Gandhak has merit to enhances the qualities of Parada and the combination like Kajjali, Hingula, Rasa-Sindoor, Makardhwaj etc. are most potent Rasa preparations.